~/MyDocs/.documents $ sudo apt-get install libc
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package libc is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package libc has no installation candidate

~/MyDocs/.documents $ sudo apt-get install libc
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package libc is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package libc has no installation candidate